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Advancing non-faradaic impedance biosensors: sensitivity enhancement strategies using microfluidics, multiscale labeling, and CMOS technology. [PDF]
Microsyst NanoengKim NS, Kim J.
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Odd-bit triangular quadrature amplitude modulations
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009Adaptive modulation is a technique which alters constellation size depending on channel condition to achieve highspeed data transmission. However, the well-known modulation schemes transmitting odd bits per symbol, such as 8-ary phase shift keying (PSK) and cross quadrature amplitude modulation (cross QAM), are generally not considered as a candidate ...
Sung-Joon Par +2 more
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Quadrature Amplitude Modulation
Communication Systems, 2019The Quadrature Modulation Scheme (QUAM) uses sine and cosine orthogonality properties to allow the transmission of two different signals in the same carrier, which occupies a bandwidth that is equivalent to the AM signal. The QUAM modulator can be assembled using two DSB-SC modulators.
Marcelo S. Alencar, Valdemar C. da Rocha
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Hexagonal Quadrature Amplitude Modulation Aided Spatial Modulation
2019 11th International Conference on Electrical and Electronics Engineering (ELECO), 2019In this study, a new multiple-input multiple-output (MIMO) transmission scheme with energy-efficiency is proposed by combining spatial modulation (SM) and energy-efficient hexagonal quadrature amplitude modulation (HQAM) constellation scheme, briefly called HQAM-SM.
Fatih Cogen, Erdogan Aydin
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A new hexagonal quadrature amplitude modulation aided media‐based modulation
International Journal of Communication Systems, 2021SummaryIn this paper, a new high‐data rated and energy‐efficient hexagonal quadrature amplitude modulation aided media‐based modulation scheme, called HQAM‐MBM, is proposed for the next‐generation communication systems. In MBM, mirror activation patterns (MAPs) of a reconfigurable antenna have been used to convey extra information in addition to ...
Erdogan Aydin
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Jointly optimized quadrature amplitude modulation
2016 IEEE International Conference on Communications (ICC), 2016Quadrature amplitude modulation has been widely used for high-speed data transmission in modern digital communication systems. In this work, a generalized quadrature amplitude modulation which relaxes the constraint of square lattice is suggested to improve the joint performance of modulation and coding.
Sung-Joon Park
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Optics Letters, 2012
Optical quadrature amplitude modulation (QAM) is experimentally demonstrated with a low-complexity modulator based on a semiconductor optical amplifier and electroabsorption modulator. Flexible amplitude/phase format transmission is achieved. The applicability of octary QAM for coherent optical access networks with sustainable 3 Gb/s per-user bandwidth
Bernhard, Schrenk +6 more
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Optical quadrature amplitude modulation (QAM) is experimentally demonstrated with a low-complexity modulator based on a semiconductor optical amplifier and electroabsorption modulator. Flexible amplitude/phase format transmission is achieved. The applicability of octary QAM for coherent optical access networks with sustainable 3 Gb/s per-user bandwidth
Bernhard, Schrenk +6 more
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Weighted-Quadrature-Amplitude Modulation
IEEE Transactions on Electromagnetic Compatibility, 1986A family of weighted-quadrature-amplitude-modulation (WQAM) schemes is introduced and analyzed. One of the staggered WQAM (SWQAM) schemes has low spectral sidelobes, even after hardlimiting, and its performance in an adjacent-channel interference (ACI) environment is superior to that of the QPSK; SQPSK, MSK, and SQORC.
Andy D. Kucar, Kamilo Feher
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